AWS Machine Learning Associate Practice Exams
To prepare for the AWS Machine Learning Associate certification, practice exams and sample questions are essential. The following information will help you pass the AWS ML Exam.
Optimizing DynamoDB Table Read
When reading the latest items from a large DynamoDB table (approximately 120 million records) from a SageMaker Studio notebook, the most direct and low-latency method is crucial. The options include:
- Using AWS Glue to ETL into Parquet in Amazon S3 and then reading from S3
- Utilizing Amazon DynamoDB Accelerator (DAX) from the notebook
- Employing Amazon Athena with the DynamoDB federated connector
- Calling DynamoDB directly from the notebook using Boto3
- Exporting the table to S3 with on-demand export and reading the files
- Replicating to Amazon RDS via a scheduled Lambda and querying RDS
Tuning Binary Classifier Threshold
When tuning a binary classifier's threshold to maximize correct positives and negatives on a validation set, the metric to optimize is the
Area under the ROC curve (AUC-ROC).
Analyzing SageMaker Spend and Forecasting Costs
Cost Explorer capabilities help analyze SageMaker spend and forecast future costs.
Author's summary: Essential practice exams for AWS Machine Learning Associate certification.